350-601 Network Practice Question
A network team is troubleshooting a vPC issue where one of the member ports is not coming up. Which TWO conditions can cause a vPC member port to fail consistency checks? (Select two.)
⚠ Common exam trap
Cisco often tests the distinction between parameters that are checked for vPC consistency (like STP port type and allowed VLANs) versus those that are not (like root guard or peer keepalive), leading candidates to select options that sound plausible but are not part of the consistency check list.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Different STP port type (edge vs network)
VPC performs consistency checks on member ports to ensure both peers have identical configurations for certain parameters. A mismatch in STP port type (e.g., one peer configured as 'edge' and the other as 'network') will cause the vPC member port to fail the consistency check and remain down, as STP port type affects BPDU handling and loop prevention.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Different STP port type (edge vs network)
Why this is correct
STP port type must match on both peers for the same port.
- ✗
Spanning-tree guard root configured on one peer
Why it's wrong here
Root guard is per interface; if configured differently, it can cause issues but is not a standard consistency parameter.
- ✓
Mismatched allowed VLANs on the port channel
Why this is correct
vPC requires consistent VLAN lists.
- ✗
Incorrect peer keepalive IP
Why it's wrong here
Peer keepalive affects vPC domain, not member port consistency.
- ✗
Different MTU settings on the peer-link
Why it's wrong here
MTU on peer-link affects the link itself, not member ports directly.
Visual reference
Go deeper
Related to this question
About these practice questions
One of 984 original 350-601 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.